plotting 3 variables on a single plot in ggplot2

Question

Hi have an experiment which consists of three variables, and I would like to plot them all on a single plot.

This is my df:

AB <- data.frame(block=c(\         


        

Answer 1

IF you have different datasets for those variables, then you can specify the data

ggplot()+
  geom_line(data=A, aes(x=prime, y=RT, group=familiarity,linetype=familiarity), size=1) +
  geom_line(data=B, aes(x=prime, y=RT, group=familiarity,linetype=familiarity), size=1)+
  expand_limits(y=c(500,650))